Stovepipe.



No. 692,865. 7 'Pafented Feb. |l,-.|902-. J; H. LAUTERMAN.

STOVEPIPE. (Application filed Oct. 22, 1901..

' (No Model.)

UNITED STATES.

PATENT OFFICE.

JOHN H. LAUTERMAN, OF COLORADO SPRINGS, COLORADO.

STQVEPIPE.

SPECIFICATION forming part of Letters Patent No. 692,865, datedFebruary -ll, 1902.

Application filed October 22, 1901. SarialNo. 79,591. (No model.)

ful Improveinentsin Stovepipes, of which the following is a specification. 7

My invention relates to improvements in stovepipes, and contemplates the provision of a Stovepipe comprising sections adapted to be readily adjusted with respect to each other female section.

to increase or diminish the length of the pipe and facilitate the placing of the same in its operative position and a simple, com pact, and reliable device through themedium of which the sections maybe expeditiously fixed with reference to each other, and the pipe thereby secured in its adjusted position.

With the foregoing] in mind the invention will be fully understood from the following description and claims when taken in conjunction with the annexed drawings,jin which Figure 1 is a perspective view of my improved Stovepipe; Fig. 2, an enlarged detail transverse section with some parts in elevation; Fig. 3, a section taken at right angles to Fig. 2 and in the plane indicated by the line 3 3 of the latter; Fig. 4, disconnected perspective views of the parts making up the clamp which I prefer to employ, and Fig. 5 an enlarged detail section illustrating a modification.

Similar letters of reference designate corresponding parts in all of the several views of the drawings, referring to which- A is the female section, and B the male section, of my improved pipe. The female section is provided with a longitudinal offset or loop a, which by preference extends throughout its length, and the male section has a complementary longitudinal rib or radial projection b1 e., a rib or 'radial projection adapted to rest and move in the ofiset of the Said rib or radial projection b may be andpreferably is formed by the seam of the male section, as shown; butI do not desire to be understood as confining myself to this construction, as the rib or projection might obviously be formed apart from and independent of the seam without departing from the scope of my invention. On the female section, at a point adjacent to the offset a thereof, is the preferred form of device 0. This device is a clamp and comprises a body 0, riveted or otherwise connected to the female section and having a groove. cl in its outerside and also having its inner end ar-' ranged to abut against one side of the offset a, a slide a, arrangedin the groove 61 and having a lip f, adapted to engage the other side of the oifset, and also having an aperture g, elongated or oblong in the direction of its width,'and a cam 71, disposed in the elon-' gated aperture of the slide'and carried by and interposed between a pintle t, journaled and secured in the body 0, and a head or enlargementj, arrangedabove the slide. Said head or enlargement serves to retain the slide on the body and also for the connection of a handle 70.

In the practical operation of my improvements when the handle is of the clamp is turned toward the offsetc the lip f on slide e is moved in a direction away from the off set, and the male section B may then be readily adjusted lengthwise in the female section or said female section may be similarly adjusted on the male section until the pipe is of the proper length and in the position desired. When, however, the handle 7: is turned into the position shown in Figs. 1 and 2, the offset a and the rib or projection b therein will be tightly clamped between the lipfof slide 6 and the inner end of body 0,

and in consequence the sections A B will be securely fixed with respect to each other and held against casual movement.

It follows from the foregoing that my improved pipe maybe adjusted as to length and placed in the position desired with great convenience and facility and when in such position may as readily be securely fixed against casual movement or displacement; also, that when it is desired to remove the pipe the same may be readily accomplished after the handle It of the clamp is moved into the position opposite to that illustrated;

While I prefer to employ the'clamp shown and described because of its simplicity, compactness, and efficiency, I do not desire to be understood as confining myself to the same, as a clamp of any other suitable construction may be employed without departing from the scope of my claims.

My improvements are obviously suscepti-. ble of being used to advantage in smokestacks and all other smoke-conveyers and air-flues, and the term pipe as herein used is intended to comprehend the same.

The term pipe as herein used is also intended to comprehend tubular chutes, such as employed in transferring grain from elevators to barges and ships, and for conveying coal from Wagons to the basements of buildings, as there are frequently places Where it is necessary to either lengthen or shorten the chute. When it is necessary to make the pipe-sections of metal too heavy to spring and permit of the offset of the female section being pinched on the rib of the male section, I contemplate providing the offset and rib with transverse apertures a a at intervals of their length, Fig. 5, and the slide 6 of the device with a stud a on the inner side of its lip f to enter coincident apertures a a of the offset and rib when the said lip of the slide is moved inwardly-this to securely fix the sections against movement with respect to each other.

Having described my invention, What I claim,and desire to secure by Letters Patent,

1. In an adjustable pipe, the combination of a male section having an exterior, longitudinal rib or projection, a female section havingalongitudinal ofiset of U shape in cross-section receiving the rib or projection of the male section, and a device comprising a body fixed on the outer side of the female section at one side of the offset thereof, and

a member adjustable on the body and having a portion disposed at the opposite side of the ofiset with reference to the body and provided with means for coacting with the offset and rib and fixing the sections against movement with respect to each other.

2. In an adjustable pipe, a male pipe-section having an exterior, longitudinal projection,a female pipe-section of sheet metal l1avin g an outwardly-extending, longitudinal offset of U shape in cross-section receiving the projection of the male section, and a clamp on the female pipe-section for pinching the offset thereof against the projection of the male section and thereby fixing the sections with respect to each other.

3. In an adjustable pipe, the combination of a male section having an exterior rib or projection, a female section having an offset receiving the rib or projection of the male section, and the device comprising the body fixed on the female section at one side of the offset, a slide having means for coacting with the offset and rib to fix the sections to each other, and also having an oblong aperture, and a cam arranged in said aperture and interposed between and carried by a pintle journaled in the body, and a head or enlargement disposed above the slide.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN H. LAUTERMAN. XVitnesses:

JOHN A. RoELEN, G. B. LAUTERMAN. 

